Use ColorTime’s gestural interface to color grade your videos and photos in real-time.
The powerful grading tools enable you to make your images and videos look beautiful and professionally finished.
With a single touch gesture, accurately manipulate color or tone, in the highlights, midtones and shadows.
VertexGrade technology allows you apply grades to organic, freeform selections.
ColorTime now supports 4k video, high frame-rates, HEVC encoding (on supported devices), and non-destructive saving to your iCloud Photo Library.


“New and Noteworthy” on the UK App Store, 1st June 2013.

“The app’s appeal lies not just in what it does, but in the way that it does it.”
“Like no other app I’ve used, ColorTime allows you to isolate portions of your image for color adjustments and offers the ability to mix colors and effects as if they were digital paints. As nuanced or as crazy as you want to get with your color tweaks, ColorTime delivers.” ~~Tim Moynihan,

“Kicked myself when I saw what it can do for my mobile photos.”~~Peter West Carey,

“The app has a very professional feel that does what it says.” ~~Raman Pfaff,

NEW *** Color grade HD video in real-time ***
Accurately manipulate: Shadows, Midtones, Highlights, Contrast, Saturation.
• Apply unlimited changes to:
--> All the image.
--> Inside of a shape.
--> Outside of a shape.
--> Long-press and drag to paint.
• Use different brush sizes to make your selections.
• MODULATE the colors in your image - explore beautiful new looks.
• Save your grades and sync them with iCloud.
• Share to social networks.
• Crop and rotate your photos and video.

== Unique Color Gesture
The most natural way to manipulate color in your photos.
Just touch the screen and drag. ColorTime’s unique gesture interface allows you to effortlessly change color and brightness of the shadows, midtones, highlights and contrast in your photo.

== Full Screen Realtime Editing
Fill the display with your image and watch it change in realtime.
ColorTime uses OpenGL graphics processing technology so that you can manipulate up to 16.7 Megapixel photos or 4k video in real-time.

== VertexGrade Technology
A powerful and non-destructive way to selectively change parts of your picture.
VertexGrade technology allows you to long-touch and drag to select part of your photo or video. You can then change just the area selected. Make as many selections and as many changes as you like, it won’t slow ColorTime down.

== Interactive Shape
A versatile way to add a vignette or create a unique look.
ColorTime’s inbuilt shape allows you to assign one look to the inside of the shape and another to the outside. At its simplest, you can darken the edges of an image to create a vignette, or go further and create your own unique effect.

== Modulate Mode
Need inspiration? Let ColorTime generate some looks for you.
Press the play button and ColorTime will smoothly animate the color in your photo or video. ColorTime uses an algorithm to assign an almost endless sequence of unique looks.

== Grade Manager
Save your favorite grades.
ColorTime will sync your top 5 grades across your iOS devices using iCloud.

== Social Integration
Share your creation on Facebook, Twitter, Email, Instagram.

What’s New

Version 2.5.1

- Photo Extension UI Improvements.
- New Feature: Photo Extension Crop Tool
- New Feature: Photo Extension Modulate-Color Tool
- Bug Fixes To The ColorTime App: Under some conditions the file size could accumulate over time. This has now been fixed.

Ratings and Reviews

4.2 out of 5
30 Ratings

30 Ratings

KDE06 ,

Photoshop in my pocket

Great app, it works just as explained. It really is a photoshop in my pocket. Some minor things might be nice if added. The GUI could be a litter nicer, an addition for exporting in 4K quality would be nice. An option for lower compression would be also nice. A manual camera added, like change in exposure shutter speed manual focus, etc...over all its amazing for how easy and fast it is to use, those changes I listed are just my opinions on how to make it better.

Thank you for reading my review

Developer Response ,

Hi KDE, thanks very much for your valuable feedback. I'm glad that you've enjoyed using ColorTime. I'll be working on improving the user interface, amongst other things, with the next major update, so stay tuned!

NinjaSoFun ,


No words can describe how much I love this app as it helps me go on creative/experimental boundaries as a video editor striving to visually set the mood. Only thing I’d suggest to be in the next update is the ability to change the speed of the auto-color shifting mode, and control when it starts/stops

Developer Response ,

Hi NinjaSoFun. It's good to hear you are using ColorTime to help set the mood of some of your footage. We'll look into the speed change . In the meantime, whilst in the 'modulate' mode try dragging left or right to cycle through different looks. Thanks for taking the time to write us a review.

creampouff cc;; ,

a million stars

This app is insane. Wish i could give it a million stars. The only thing that could possibly make it better than it already is, is a match tool to match the colors of another photo. Thus making a quintessential app even more powerful ...

Developer Response ,

Thanks so much for your review creampouff! I’m glad you are enjoying using the app. I’ll take into consideration your request for match grading as we go forward. Thanks for the suggestion.


The Color Science Lab
9.3 MB
Photo & Video

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2019, The Color Science Lab.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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